**4.3.2 Effect of different treatments on total accumulated temperature**

The measured results of the total accumulated temperature of each treatment were shown in table 4-8.

Table 4-8. The total accumulated temperature of each treatment

Soil depth (cm)

0

5

10

15

table 4-12.

depths among treatments

Treat ment

Study on Manufacturing Technology and Performance of Biogas Residue Film 291

Mean difference (℃)

*<sup>i</sup> y <sup>i</sup> <sup>F</sup> y* − *y <sup>i</sup> <sup>E</sup> y* − *y <sup>i</sup> <sup>D</sup> y* − *y <sup>i</sup> <sup>C</sup> y* − *y <sup>i</sup> <sup>B</sup> <sup>y</sup>* <sup>−</sup> *<sup>y</sup>*

B 417.5 28.5\* 88.6\*\* 24 13.2 C 404.3 15.3 101.8\*\* 37.2\* D 441.5 52.5\*\* 64.6\*\* E 506.1 117.1\*\* F 389

B 391.7 17.3\* 48.4\*\* 11 2.1 C 389.6 15.2 50.5\*\* 13.1 D 402.7 28.3\* 37.4\*\* E 440.1 65.7\*\* F 374.4

B 359.3 15.8\* 41.2\*\* 11.3 5.6 C 353.7 10.2 46.8\*\* 16.9\* D 370.6 27.1\*\* 27.1\*\* E 400.5 57\*\* F 343.5

B 339.9 5.5 45\*\* 11.8 2.4 C 337.5 3.1 47.4\*\* 14.2\* D 351.7 17.3\* 33.2\*\* E 384.9 50.5\*\* F 334.4

Table 4-10. Multiple comparisons of the total accumulated temperature of different soil

Source SS DF MS F P-value F0.05 Interval 0.5030 2 0.2515 2.4037 0.1405 4.1028 Treatment 3.7059 5 0.7412 7.0833 0.0045 3.3258

Table 4-11 showed that there were significant differences between the yields of each treatment. Multiple comparisons of the eggplant yield among treatments were shown in

Notes: The significance of symbols was as same as table 4-4.

Error 1.04637 10 0.1046

Table 4-11. Analysis of variance of the yield date

Total 5.2553 17

**4.4 The effect of different treatments on eggplant yield**  Analysis of variance of the yield was shown in table 4-11.

A 420.8 31.8\* 85.3\*\* 20.7 16.5 3.3 28.13 40.01

A 391.4 17\* 48.7\*\* 11.3 1.8 0.3 15.6 22.19

A 361.7 18.2\* 38.8\*\* 8.9 8 2.4 15.68 22.32

A 343.4 9 41.5\*\* 8.3 5.9 3.5 13.19 18.76

LSD0.05 LSD0.01


Analysis of variance of the total accumulated temperature of each treatment was shown in table 4-9.

Table 4-9. Analysis of variance of the total accumulated temperature of each treatment

Multiple comparisons of the total accumulated temperature of different soil depths among treatments were shown in table 4-10.

Table 4-10 showed that there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control while the soil depth was 0cm and 10cm. There were significant differences between the black film and control; there were significant differences between A, B treatment of biogas residue fibre film and control; there were no significant differences between C treatment of biogas residue fibre mulch and control; there were significant differences between black film and C treatment of biogas residue fibre film. While the soil depth was 5 cm, there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control; there were significant differences between A, B treatment of biogas fibre residue film, black film and control. While soil depth was 15 cm, there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control; there were significant differences between the black film and C treatment of biogas residue fibre film and control.

While the soil depth was 0 cm, 5 cm, 10 cm, the total accumulated temperature of A, B treatment of biogas residue film obviously increased than control, and C did not significantly increase; while the soil depth was 0cm, the total accumulated temperature of A treatment increased 31.8 ℃, B increased 28.5 ℃, and C increased 15.3℃ than control; while the soil depth was 5cm, the total accumulated temperature of A treatment increased 17℃, B increased 17.3℃, and C increased 15.2℃ than control; while the soil depth was 10cm, the total accumulated temperature of A treatment increased 18.2 ℃, B increased 15.8 ℃, and C increased 10.2 ℃ than control. While the soil depth was 15 cm, the total accumulated temperature of three kinds of biogas fibre residue film nearly closed to control, and was less than the black film and plastic film. There was no significant difference between the three kinds of biogas residue fibre film.


Analysis of variance of the total accumulated temperature of each treatment was shown in

Soil depth cm Source SS DF MS F P-value F0.05

Error 2390.63 10 239.06

Error 735.53 10 73.55

Error 743.86 10 74.39

Error 525.47 10 52.55

Table 4-9. Analysis of variance of the total accumulated temperature of each treatment

Multiple comparisons of the total accumulated temperature of different soil depths among

Table 4-10 showed that there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control while the soil depth was 0cm and 10cm. There were significant differences between the black film and control; there were significant differences between A, B treatment of biogas residue fibre film and control; there were no significant differences between C treatment of biogas residue fibre mulch and control; there were significant differences between black film and C treatment of biogas residue fibre film. While the soil depth was 5 cm, there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control; there were significant differences between A, B treatment of biogas fibre residue film, black film and control. While soil depth was 15 cm, there were significant differences between plastic film and three kinds of biogas fibre residue film, black film and control; there were significant differences between the black film and C treatment of biogas residue fibre film and control. While the soil depth was 0 cm, 5 cm, 10 cm, the total accumulated temperature of A, B treatment of biogas residue film obviously increased than control, and C did not significantly increase; while the soil depth was 0cm, the total accumulated temperature of A treatment increased 31.8 ℃, B increased 28.5 ℃, and C increased 15.3℃ than control; while the soil depth was 5cm, the total accumulated temperature of A treatment increased 17℃, B increased 17.3℃, and C increased 15.2℃ than control; while the soil depth was 10cm, the total accumulated temperature of A treatment increased 18.2 ℃, B increased 15.8 ℃, and C increased 10.2 ℃ than control. While the soil depth was 15 cm, the total accumulated temperature of three kinds of biogas fibre residue film nearly closed to control, and was less than the black film and plastic film. There was no significant difference between the three kinds of biogas residue fibre film.

Total 30924.4 17

Total 7036.3 17

Total 6843.37 17

Total 6222.34 17

Interval 3016.57 2 1508.29 6.3092 0.0169 4.1028 Treatment 25517.2 5 5103.44 21.3477 4.84E-05 3.3258

Interval 58.83 2 29.42 0.3999 0.6806 4.1028 Treatment 6241.93 5 1248.39 16.9726 0.000133 3.3258

Interval 324.96 2 162.48 2.1843 0.1633 4.1028 Treatment 5774.55 5 1154.91 15.526 0.000195 3.3258

Interval 432.25 2 216.13 4.113 0.0497 4.1028 Treatment 5264.62 5 1052.92 20.037 6.42E-05 3.3258

table 4-9.

0

5

10

15

treatments were shown in table 4-10.

Notes: The significance of symbols was as same as table 4-4.

Table 4-10. Multiple comparisons of the total accumulated temperature of different soil depths among treatments

#### **4.4 The effect of different treatments on eggplant yield**

Analysis of variance of the yield was shown in table 4-11.


Table 4-11. Analysis of variance of the yield date

Table 4-11 showed that there were significant differences between the yields of each treatment. Multiple comparisons of the eggplant yield among treatments were shown in table 4-12.

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Notes: The significance of symbols were as same as table4-4.

Table 4-12. Multiple comparisons of the eggplant yield among treatments

The results showed that there were significant differences between B treatment of biogas residue fibre film and control, no significant differences between A, C treatment and control, significant differences between black film and control. There were extremely significant differences between the plastic film, A, C treatment and control, there were significant differences between plastic film and B treatment, no significant differences between plastic film and the black film. It can be seen, the yield of B treatment increased 47% as compared with control.
